DE102011013349A1 - Discharge device e.g. floor drain for waste water used in e.g. bathroom, has sealing unit that is in contact with the drain port of trap - Google Patents

Abstract

The discharge device (1) has a cup-shaped waste container (3) having an inlet (2). A trap (4) is fastened with cup-shaped waste container. The trap is provided with a drain port (400) which in inserted partially into an outlet pipe (30) of the cup-shaped waste container. The outlet pipe of cup-shaped waste container is provided with a peripheral section (31) in which a sealing unit (5) is accommodated. The sealing unit is in contact with the drain port of trap.

Description

The invention relates to a drainage device for wastewater, in particular a floor drain, comprising at least one at least one inlet and at least one lateral outlet nozzle having cup-like drain container, in which at least one odor trap can be fastened, wherein the odor trap also has a drain pipe, which in the outlet nozzle of the drain tank at least partially insertable.

Such drainage devices are known in wastewater engineering. The odor traps are designed as one-piece, removable odor traps and are introduced as so-called plug-in odor traps with a paddle-shaped overflow pan in the drain pipe. The remaining inside the drain tank housing part is placed on the bottom of the drain tank.

Typical applications of such drainage devices are in bathrooms, basements, kitchens or comparable wet areas.

The odor trap serves to prevent unwanted backflow of odors or channel gases.

From the DE 43 09 219 A1 a generic drain device with the features of the preamble is known. In this drainage device, an odor trap is plugged with a plug-in approach in a drain neck of the drainage device. The plug-in approach of the odor trap is provided with a circumferential seal, which is formed as an integrally formed on the plug neck outside, circumferential sealing lip.

This complicates the geometry of the odor trap in the region of the plug-in approach and possibly also makes it necessary to produce the odor trap in a more complicated two-component injection molding. In addition, due to the molded seal smears must be made in terms of the maximum possible diameter of the plug-in approach.

In the EP 1 571 269 A1 a waste water drain is described in which a predetermined odor trap height (ie the height of a water column which prevents the unwanted backflow of gases until it evaporates) is achieved by having the odor trap device two in a flow path to a drain port and horizontal Direction juxtaposed odor traps has. Each odor trap has a partial odor trap height, wherein both partial odor trap heights together define a predetermined odor trap height.

Due to the selected construction, however, a repeated deflection of the flow in the odor trap device is necessary. This leads to an increase in the flow resistance and may affect the drainage performance of the device.

The invention is based on the object to provide a generic discharge device, in which the odor trap easy to manufacture and can be inserted in a simple manner with sufficient tightness in the drain pipe of the drain device.

This object is achieved with the characterizing features of claim 1.

Advantageous developments of the invention can be taken from the subclaims.

The invention relates to a drainage device for wastewater, comprising at least one at least one inlet and at least one lateral outlet nozzle having cup-like drain container, in which at least one odor trap can be fastened, wherein the odor trap also has a drain pipe, which at least partially into the outlet pipe of the drain tank is insertable.

According to the invention, it is provided that the discharge nozzle of the drainage container is provided with at least one peripheral widening, in which a sealing means can be received and brought into contact with the discharge nozzle of the odor trap.

With this configuration, it is very easy possible to push the drain port of the odor trap with sufficient tightness in the drain pipe of the drain tank or hineinzuschcken, with sufficient tightness is guaranteed. In addition, in the circumferential widening a commercially available, inexpensive sealant, for example in the form of a sealing ring (eg., Roll or lip seal), are admitted.

It can also be provided in the flow or drain direction several such circumferential widening, spaced and with appropriately received sealing means.

Due to the peripheral expansion on the side of the drain neck from the drain tank, it is also possible to provide the drain neck of the odor trap with a maximum possible outside or inside diameter. Because it needs on the part of the odor trap side Ablaufstutzens no space for a sealing ring or the like are kept.

It is very useful to form the circumferential expansion trough-like. In particular, when used as a sealant commercially available sealing rings (eg., Roll or lip seals), they find in a groove-like widening good grip in the lateral direction and can not slip and thus reduce the sealing effect.

According to one embodiment of the invention, it is provided that the outlet nozzle of the odor trap has a constant outer diameter. This means that the geometry of the drain neck of the odor trap can be kept simple, especially as a simple, cylindrical pipe socket. This contributes to an easy insertion of the drain nozzle in the drain pipe of the drain tank despite there internal seal.

A further development of the invention also provides that, as seen in the direction of flow, after the peripheral widening, the discharge nozzle of the drainage container has at least one reduction of the inner diameter to such an inner diameter which is smaller than the outer diameter of the discharge nozzle of the odor trap. As a result, a good stop possibility for the outlet connection of the odor trap in the insertion direction is provided.

It is very advantageous if the reduction of the diameter is realized by a pre-accession of a seen in the mounting position overhead wall to a lower wall of the drain neck. In this way, despite a reduction in cross-section of the downcomer a once selected lower position of the lower wall can be maintained.

In particular, to achieve the lowest possible height, it may be expedient if the outlet nozzle of the drain tank and the peripheral expansion are positioned so that seen in the mounting position, a lower boundary of the expansion is approximately on a contour line with a bottom of the drain tank.

According to a further expedient embodiment of the inventive concept it is provided that the odor trap is constructed in two parts, with an outlet part having the outlet nozzle and an inner part having an inlet, wherein the outer and inner parts are detachably but tightly connected to each other.

This allows easy disassembly of the odor trap and, if necessary, contributes to a more thorough cleaning of the odor trap. Moreover, such a very simple and compact construction of the odor trap is possible.

In particular, it can be provided for the purpose of even easier disassembly of the odor trap that the outer part is latchingly connected to the inner part.

A reliable seal can be achieved, for example, if a peripheral seal is introduced between the outer and the inner part. Such a peripheral seal may be in the form of a sealing ring, for example.

Alternatively, however, it is also conceivable to shrink the outer part already during the manufacturing process to the inner part. Specifically, the coming from the injection molding machine, still warm outer part with the already cooled inner part is connected (for example, clipped). During cooling, the outer part shrinks to the inner part, whereby a watertight connection of these components is possible even without a seal.

It is very useful if the inner part has a height over which it is enclosed by the outer part and if the inner part is tubular, wherein the inner part is connected to a peripheral edge region of a funnel-like widening with an edge region of an opening of the outer part.

The inner part may be cylindrical (ie as a round tube) at least over a substantial part of its length, wherein the outer part is then adapted accordingly.

But there are also other cross-sectional shapes conceivable. Thus, instead of being cylindrical, the inner part can also be elliptical, again with a corresponding adaptation of the outer part. This brings advantages in terms of achievable drainage performance.

The above-mentioned embodiment of the odor trap contributes to a simple construction of the odor trap and to a low-loss flow of the waste water with a minimum of flow deflections. The effluent from the top reaching wastewater thus flows first from top to bottom on the outer part and then passes to the inlet opening of the inner part, which then rises after a reversal of the flow direction by about 180 ° up through the inner part and after reaching an upper edge of the tubular inner part (again after reversal of flow by about 180 °) passes into the outlet nozzle of the outer part. A reversal of the Flow direction by about 180 °, however, is only necessary twice. The effective odor trap height is determined essentially by the height of the tubular inner part.

According to another, highly expedient embodiment of the invention it is provided that seen in the mounting position of the odor trap, the inlet opening of the inner part is offset relative to a lower wall of the drain neck upwards. As a result, the distance of the inlet opening of the odor trap from the bottom of the drain container can be increased in an elegant way, if necessary.

According to a further, highly expedient development of the invention, it is provided that the discharge container has an inlet opening on its upper side and an edge region surrounding this inlet opening, wherein the edge region is formed by a circumferential, groove-like depression, which has at least one radial depression radially inwardly the at least one radially inwardly facing projection of an annular part is insertable.

This allows most effective vertical attachment of the drain tank in an opening provided for the drain container in the bottom area, for example in a mounting hole within a so-called board. This is a prefabricated Styrofoam part, which is inserted with a pre-assembled drainage device in a floor (eg screed). The ring-like, in cross-section L-shaped part may then be a so-called board ring, which is supported with a horizontally extending part of its wall medium or directly on the board and the other, vertically extending part of the wall one or more radially inwardly facing Having projections which engage in corresponding depressions of the drain tank.

It should be noted that the above training in the same way, of course, also offers advantages for drainage devices, which do not have a drain tank with side drain spigot, but for example, a drain tank with downwardly directed, vertical drain neck.

A particularly simple and effective attachment between the ring-like part and the drain container results when the recess is formed like a bayonet.

In addition, it can be advantageously provided that the depression has at least a region-wise constriction in the insertion direction of the projection. By means of this narrowing, a defined end position or latching is possible for each inward-pointing projection of the ring-like part. Unintentional release of the annular part of the drain tank is thus avoided.

It should again be noted that even by the formation of the odor trap alone significant benefits can be achieved. This relates in particular to the tube-like inner part of the odor trap, which is enclosed over its entire length (height) by the outer part and in which rise the flow of the waste water after a first significant deflection by about 180 ° and then only after a single further deflection by about 180 ° can get into the outlet of the odor trap or the drain tank. So it is a very simple flow with a comparatively flat structure of the odor trap possible.

Furthermore, the two-part odor trap also offers advantages in terms of easier cleaning and cost-effective manufacturability.

The components of the drainage device are preferably made of polypropylene (PP). Likewise, acrylonitrile-butadiene-styrene (ABS) can also be used. Of course, other suitable materials are also conceivable.

Further embodiments and advantages of the invention will be explained in more detail with reference to preferred embodiments. Show

1 a first embodiment of a drain device according to the invention in section, which is already mounted in a floor area (board),

2 a perspective view of the drain tank,

3 a perspective view of the outer part of the odor trap,

4 a perspective view of the inner part of the odor trap,

5 a detailed view according to detail V from 1 .

6 another sectional view of the drain device according to 1 , for the sake of clarity, some components, in particular the odor trap are not shown,

7 a sectional view according to 6 from a different angle, in which a further, ring-like component for attachment of the drain container is shown with a board,

8th the representation of a bayonet-like, radial recess in the wall of the drain tank for easier attachment of the drain tank and

9 a second embodiment of a drain device according to the invention with a second inlet in the drain tank.

First, on the 1 Referenced.

From the figure is a drain device according to the invention 1 already visible in a floor area, in a so-called board 6 embedded and installed. The drainage device 1 includes a pot-like drain container 3 with an overhead inlet 2 , being in the upper inlet 2 a frame part 9 for receiving a grid (not shown) is inserted.

The drain tank 3 in turn has an integrally connected with this, tube-like outlet nozzle 30 on, in the an odor trap 4 is plugged in. The odor trap 4 is constructed in two parts and consists of a bell-shaped outer part 40 and a tubular inner part 41 ,

The tubular inner part 41 As seen in the flow direction (see arrows) has a height h, which also determines an effective odor trap height. The outer part 40 encloses the inner part 41 over its entire height h.

It can also be seen that the inner part 41 is with the outer part 40 detachable but tightly connected via a latching connection. To produce the tightness between the parts is a circumferential sealing ring 10 admitted.

It can also be seen that the outer part 40 a tubular drain neck 400 over which the odor trap 4 in the outlet pipe 30 of the drain tank 3 inserted or inserted.

In this case, the drain neck 30 an inner diameter d1, which is approximately the outer diameter of the downcomer 400 is equal to or only slightly larger. This is already a good fit of the drain neck 400 in the drain neck 30 possible.

In order to ensure sufficient tightness is further provided that the drain pipe 30 with a circumferential, channel-like expansion 31 is provided, in which a circumferential sealing ring 5 (For example, roll or lip seal) is recorded.

By the expansion 31 on the drain outlet side 30 can the diameter of the drain neck 400 (despite the intermediate sealing ring 5 ) are kept comparatively large, whereby a high wastewater throughput can be achieved.

Furthermore, it can be seen that the drain neck 30 seen in the flow direction after the expansion 31 reduced from a larger inner diameter d1 to a smaller inner diameter d2. As a result, a possible stop for the outlet nozzle in a simple manner 400 in the drain neck 30 educated.

It can be seen that this cross-sectional constriction only by a one-sided pre-introduction of an upper wall 33 to a wall below 32 he follows. Due to the cross-sectional reduction is therefore in the upper region of the wall, a transition region 34 defined, which as a stop for the drain neck 400 serves.

The drain neck 30 is positioned so that a bottom wall of the circumferential expansion 31 with a floor 300 of the drain tank 3 lies approximately on a common contour line Z.

The above measures contribute to a comparatively flat height of the drainage device 1 at.

Although the drain neck 30 relatively close to the bottom level of the drain tank 3 can be introduced by an offset V between an inlet opening 410 the odor trap 4 and the drain neck 400 in an elegant way a sufficient distance between the ground 300 of the drain tank 3 and the inlet opening 410 the odor trap 4 will be realized.

As will be explained in more detail later, is the drainage device 1 via a rotating board ring 8th on one with the board 6 firmly bonded (glued) board ring 7 held in the vertical direction.

In 2 is now the drain tank 3 shown as a single part. Here is the decreasing in cross-section drain neck 30 with the overhead transition area 34 clearly visible and also the encircling, channel-like widening 31 is easy to recognize.

Furthermore, an upper inlet opening 35 recognizable, which of a circumferential groove 36 is bordered. The circumferential groove 36 is through a radially inner wall 37 and a radially outer wall 38 educated.

It can be seen that the radially inner wall 37 at two opposite points with a radial recess in the form of a bayonet-like groove 370 is provided. The function of these grooves 370 will be explained later.

Based on the 3 and 4 will now again from the outer part 40 and the inner part 41 existing odor trap 4 explained in more detail.

The outer part 40 is bell-shaped and has a lower entrance opening 401 with a border area 402 on. In the outflow direction is the tubular discharge nozzle 400 seen.

The inner part 41 is tube-like and has an inlet opening 410 and a drain hole 411 on. At the bottom is the inner part 41 with a circumferential, funnel-like expansion 412 provided at the edge region, a circumferential groove 413 located.

The outer part 40 and the inner part 41 are now compressed latching during assembly, with a sealing ring is received between these parts.

In 5 this is shown in detail. It can be seen that the circumferential groove 413 of the inner part 41 with an undercut 414 is provided, in which the edge region 402 of the outer part 40 can engage with restraint. In between is the sealing ring 10 held. It is thus realized a dense and reliable but detachable connection between these parts.

Notwithstanding the in the 1 to 8th illustrated embodiments in which the inner part 41 is circular in cross-section (with appropriate design of the outer part 40 ), are also other cross-sectional shapes of the inner part 41 or the outer part 40 conceivable. So has an elliptical cross-sectional shape of the inner part 41 with appropriate adaptation of the outer part 40 proved to be very useful for increasing the achievable drainage performance (not shown).

Furthermore, it is also conceivable, the components 40 and 41 in such a way connect that during their production, the outer part 40 in still warm condition on the already cooled inner part 41 is shrunk. As a result, even without a sealing ring, a watertight connection between the components 40 and 41 achievable.

Based on 6 to 8th will now be described as the drain tank 3 and thus the drainage device 1 on the board 6 being held. For the sake of clarity, there are the odor trap 4 and also the frame part 9 not shown:
The apparent board ring 7 is stuck with the board 6 connected, for example glued to this. Through the boardring 7 is already in the area of the mounting hole of the board 6 increased stability. The boardring 7 is doing so from the top into the mounting hole of the board 6 let in and has such dimensions that between a vertical, projecting into the mounting hole wall of the board ring 7 and the board 6 still a circumferential gap remains.

Now, from below into the mounting hole of the drain tank 3 so pushed in that the outside wall 38 (on the radially inside a seal 11 molded on) in the gap between the board 6 and board ring 7 Takes place. By appropriate choice of dimensions of the drain tank 3 already stuck in the said gap.

A final fixing takes place according to 7 by introducing the second board ring 8th , which with the horizontally extending part of its wall on a part of the board ring 7 rests and with a vertically extending part of its wall in a still between the radially inner wall 37 and the boardring 7 remaining gap is introduced.

In addition, in the vertical wall of the board ring 8th with radially inwardly directed formations 80 Mistake. These can be formed in plan view in plan view, for example, approximately circular. The formations 80 serve in the already mentioned bayonet depressions 370 to be introduced and by twisting the board ring 8th clockwise the drain tank 3 in the vertical direction to prevent inadvertent lowering. Corresponding twisting aids in the board ring 8th , which may be formed, for example, as radially extending grooves or depressions are not shown in detail.

In 8th is again the shape of the bayonet-like depressions 370 in a ("unwound in a plane") top view of these can be seen. Such are the depressions 370 in the insertion direction of the formations 80 seen in the end with a narrowing 371 provided, in turn, in an approximately circular expansion 372 passes. As a result, a defined end stop of the formations 80 allows, which can be solved only by applying a predetermined release force again.

Coming back to 1 Now again briefly the flow course in the drain device according to the invention 1 described.

Wastewater flows through the inlet from above 2 in the drainage device 1 into it and flows from top to bottom on the outer part 40 the odor trap 4 over in the direction of the ground 300 of the drain tank 3 , In the bottom area then takes place a deflection of the flow by about 180 °, the wastewater through the inlet opening 410 the odor trap 4 goes up. After reaching the edge of the upper drain opening 411 (see also 4 ) again takes place a deflection of the flow by about 180 °, after which the wastewater unhindered in the outlet pipe 400 the odor trap 4 and thus in the outlet pipe 30 of the drain tank 3 can get.

Thus, the wastewater already reaches the inlet after just two deflections 2 in the outlet pipe 30 , wherein through the tubular structure of the odor trap, in particular of the inner part 41 and through that with the sealing ring 5 provided, circumferential widening 31 large flow cross sections are made possible with sufficient tightness.

Finally, in 9 a second embodiment 1' illustrated for a drain device according to the invention. Identical parts are provided with the same reference numerals.

In contrast to the drainage device 1 has the drain device 1' another drain tank 3 ' on, which in addition to a slightly different designed, upper inlet 2 ' with a horizontal inlet 12 is provided. The drainage device 1' also has a slightly different outlet pipe 30 ' on, but in this also a circumferential, channel-like expansion 31 with a sealing ring 5 is provided, in which the outlet pipe 400 the odor trap 4 is inserted.

LIST OF REFERENCE NUMBERS

1, 1

draining device

2, 2 '

Intake

3, 3 '

drain tank

30, 30 '

Drain port of the drain tank

31, 31 '

circumferential widening

32

underlying wall of the drain neck

33

overhead wall of the drain neck

34

Transition area

35

inlet opening

36

circumferential groove

37

radially inner wall

300

Bottom of the drain tank

370

bayonet-like groove

371

narrowing

372

widening

38

radially outer wall

39

circumferential heel

4

trap

40

Outer part of the odor trap

400

Drain port of the outer part

401

Entrance opening of the outdoor unit

402

Edge area of the entrance opening

41

Inner part of the odor trap

410

inlet opening

411

drain hole

412

funnel-shaped expansion

413

circumferential groove

414

undercut

5

seal

6

board

7

solid board ring (glued in)

8th

rotatable boardring

80

radially inwardly directed formations

9

frame part

10

seal

11

injected gasket

12

horizontal inlet

d1

Inner diameter of the discharge nozzle of the drain tank in a first area

d2

Inner diameter of the discharge nozzle of the drain tank in a second area

H

Height of the inner part of the odor trap

V

Offset between the inlet opening of the odor trap and its outlet nozzle

Z

common contour line

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 4309219 A1 [0005]
• EP 1571269 A1 [0007]

Claims (14)

Drain device ( 1 . 1' ) for wastewater, in particular floor drain, comprising at least one at least one inlet ( 2 . 2 ' . 12 ) and at least one side outlet nozzle ( 30 . 30 ' ), cup-like drain container ( 3 . 3 ' ), in which at least one odor trap ( 4 ) is attachable, wherein the odor trap ( 4 ) also a drain neck ( 400 ), which in the outlet nozzle ( 30 . 30 ' ) of the drain tank ( 3 . 3 ' ) is at least partially insertable, characterized in that the drain neck ( 30 . 30 ' ) of the drain tank ( 3 . 3 ' ) with at least one circumferential widening ( 31 ), in which a sealant ( 5 ) and in contact with the drain neck ( 400 ) of the odor trap ( 4 ) can be brought. Drain device ( 1 . 1' ) according to claim 1, characterized in that the peripheral expansion ( 31 ) is formed like a channel. Drain device ( 1 . 1' ) according to claim 1 or 2, characterized in that the outlet nozzle ( 400 ) of the odor trap ( 4 ) has a constant outer diameter. Drain device ( 1 . 1' ) according to at least one of claims 1 to 3, characterized in that the discharge nozzle ( 30 . 30 ' ) of the drain tank ( 3 . 3 ' ) seen in the flow direction after the circumferential expansion ( 31 ) has at least a reduction of the inner diameter (d1) to such an inner diameter (d2), which is smaller than the outer diameter of the discharge nozzle ( 400 ) of the odor trap ( 4 ). Drain device ( 1 . 1' ) according to claim 4, characterized in that the reduction of the diameter (d1) by an approach of a seen in mounting position overhead wall ( 33 ) to a lower wall ( 32 ) of the drain neck ( 30 ) is realized. Drain device ( 1 ) according to at least one of claims 1 to 5, characterized in that the outlet nozzle ( 30 ) of the drain tank ( 3 ) and the circumferential expansion ( 31 ) are positioned such that seen in the mounting position, a lower boundary of the expansion ( 31 ) approximately on a contour line (Z) with a bottom ( 300 ) of the drain tank ( 3 ) stands. Drain device ( 1 . 1' ) according to at least one of claims 1 to 6, characterized in that the odor trap ( 4 ) is constructed in two parts, with a drain neck ( 400 ) outer part ( 40 ) and an inlet ( 410 ) having inner part ( 41 ), wherein the outer and inner parts ( 40 . 41 ) are detachable but tightly connected. Drain device ( 1 . 1' ) according to claim 7, characterized in that the outer part ( 40 ) latching with the inner part ( 41 ) connected is. Drain device ( 1 . 1' ) according to at least one of claims 7 to 8, characterized in that between outer and inner part ( 40 . 41 ) a circumferential seal ( 10 ) is introduced. Drain device ( 1 . 1' ) according to at least one of claims 7 to 9, characterized in that the inner part ( 41 ) has a height (h), over which it from the outer part ( 40 ) is enclosed and the inner part ( 41 ) is tubular, wherein the inner part ( 41 ) with a peripheral edge region ( 413 ) a funnel-like expansion ( 412 ) with a border area ( 402 ) an opening ( 401 ) of the outer part ( 40 ) connected is. Drain device ( 1 ) according to at least one of claims 1 to 10, characterized in that in the mounting position of the odor trap ( 4 ), the inlet opening ( 410 ) of the inner part ( 41 ) with respect to a lower wall of the drain nozzle ( 400 ) is offset upwards (V). Drain device ( 1 ) according to at least one of claims 1 to 10, characterized in that the drainage container ( 30 ) at its top an inlet opening ( 35 ) and has a feed opening ( 35 ) surrounding edge region, wherein the edge region by a circumferential, groove-like depression ( 36 ) is formed which radially inside ( 37 ) at least one radial depression ( 370 ), in which at least one radially inwardly pointing projection ( 80 ) of a ring-like part ( 8th ) is insertable. Drain device ( 1 ) according to claim 11, characterized in that the depression ( 370 ) is formed like a bayonet. Drain device ( 1 ) according to claim 11 or 12, characterized in that the depression ( 370 ) in the insertion direction of the projection ( 80 ) seen at least a regional narrowing ( 371 ) having.

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